111222211012120 has 64 divisors (see below), whose sum is σ = 269563226264640. Its totient is φ = 41057023910400.

The previous prime is 111222211012111. The next prime is 111222211012151. The reversal of 111222211012120 is 21210112222111.

It is a happy number.

111222211012120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22882716 + ... + 27314155.

It is an arithmetic number, because the mean of its divisors is an integer number (4211925410385).

Almost surely, 2^{111222211012120} is an apocalyptic number.

111222211012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222211012120 is an abundant number, since it is smaller than the sum of its proper divisors (158341015252520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111222211012120 is a wasteful number, since it uses less digits than its factorization.

111222211012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50201156 (or 50201152 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111222211012120 its reverse (21210112222111), we get a palindrome (132432323234231).

The spelling of 111222211012120 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred eleven million, twelve thousand, one hundred twenty".